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CATALYST FOR THE SELECTIVE OXIDATION AND AMMOXIDATION OF ALKANES AND/OR ALKENES, PARTICULARLY IN PROCESSES FOR OBTAINING ACRYLIC ACID, ACRYLONITRILE AND THE DERIVATIVES THEREOF
CATALYST FOR THE SELECTIVE OXIDATION AND AMMOXIDATION OF ALKANES AND/OR ALKENES, PARTICULARLY IN PROCESSES FOR OBTAINING ACRYLIC ACID, ACRYLONITRILE AND THE DERIVATIVES THEREOF
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机译:链烷烃和/或烯烃的选择性氧化和氨氧化的催化剂,特别是在获得丙烯酸,丙烯腈及其衍生物的方法中
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摘要
A catalyst for the selective oxidation and amoxidation of alkanes and/or alkenes, particularly in processes for obtaining acrylic acid, acrylonitrile and derivatives of these, including a least one oxide of Mo, Te, V, Cu and at least another A component selected from among Nb, Ta, Sn, Se, W, Ti, Fe, Co, Ni, Cr, Ga, Sb, Bi, a rare, alkaline or alkali-earth earth, in such a way that the catalyst presents, in a calcined form, an X-ray diffractogram with five intensive diffraction lines, typically the most intense corresponding to diffraction angles of 2[theta] at 22.1+/-0.4, 27.1+/-0.4 28.1+/-0.4, 36.0+/-0.4 and 45.1+/-0.4. In the preferred embodiment, the catalyst has the following empiric formula: MoTehViCujAkOx in which h, i, j, k are values comprised between 0.001 and 4.0 and x depends on the oxidation status or valency of the Mo, Te, V, Cu and A elements.
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